From: Daniel Stone <daniels@collabora.com>
Date: Fri, 30 Mar 2018 15:11:26 +0100
Subject: drm/tegra: Move GEM BOs to drm_framebuffer
Git-commit: 0bc6af006f5ce7fb92d41dc8e01b621bd8d2226b
Patch-mainline: v4.18-rc1
References: FATE#326289 FATE#326079 FATE#326049 FATE#322398 FATE#326166
Since drm_framebuffer can now store GEM objects directly, place them
there rather than in our own subclass. As this makes the framebuffer
create_handle function the same as the GEM framebuffer helper, we
can reuse that.
Signed-off-by: Daniel Stone <daniels@collabora.com>
Cc: Thierry Reding <thierry.reding@gmail.com>
Cc: linux-tegra@vger.kernel.org
Signed-off-by: Thierry Reding <treding@nvidia.com>
Acked-by: Petr Tesarik <ptesarik@suse.com>
---
drivers/gpu/drm/tegra/drm.h | 1 -
drivers/gpu/drm/tegra/fb.c | 37 ++++++++-----------------------------
2 files changed, 8 insertions(+), 30 deletions(-)
--- a/drivers/gpu/drm/tegra/drm.h
+++ b/drivers/gpu/drm/tegra/drm.h
@@ -31,7 +31,6 @@ struct reset_control;
struct tegra_fb {
struct drm_framebuffer base;
- struct tegra_bo **planes;
};
#ifdef CONFIG_DRM_FBDEV_EMULATION
--- a/drivers/gpu/drm/tegra/fb.c
+++ b/drivers/gpu/drm/tegra/fb.c
@@ -14,6 +14,7 @@
#include "drm.h"
#include "gem.h"
+#include <drm/drm_gem_framebuffer_helper.h>
static inline struct tegra_fb *to_tegra_fb(struct drm_framebuffer *fb)
{
@@ -30,19 +31,14 @@ static inline struct tegra_fbdev *to_teg
struct tegra_bo *tegra_fb_get_plane(struct drm_framebuffer *framebuffer,
unsigned int index)
{
- struct tegra_fb *fb = to_tegra_fb(framebuffer);
-
- if (index >= framebuffer->format->num_planes)
- return NULL;
-
- return fb->planes[index];
+ return to_tegra_bo(drm_gem_fb_get_obj(framebuffer, index));
}
bool tegra_fb_is_bottom_up(struct drm_framebuffer *framebuffer)
{
- struct tegra_fb *fb = to_tegra_fb(framebuffer);
+ struct tegra_bo *bo = tegra_fb_get_plane(framebuffer, 0);
- if (fb->planes[0]->flags & TEGRA_BO_BOTTOM_UP)
+ if (bo->flags & TEGRA_BO_BOTTOM_UP)
return true;
return false;
@@ -51,8 +47,7 @@ bool tegra_fb_is_bottom_up(struct drm_fr
int tegra_fb_get_tiling(struct drm_framebuffer *framebuffer,
struct tegra_bo_tiling *tiling)
{
- struct tegra_fb *fb = to_tegra_fb(framebuffer);
- uint64_t modifier = fb->base.modifier;
+ uint64_t modifier = framebuffer->modifier;
switch (modifier) {
case DRM_FORMAT_MOD_LINEAR:
@@ -108,7 +103,7 @@ static void tegra_fb_destroy(struct drm_
unsigned int i;
for (i = 0; i < framebuffer->format->num_planes; i++) {
- struct tegra_bo *bo = fb->planes[i];
+ struct tegra_bo *bo = tegra_fb_get_plane(framebuffer, i);
if (bo) {
if (bo->pages)
@@ -119,21 +114,12 @@ static void tegra_fb_destroy(struct drm_
}
drm_framebuffer_cleanup(framebuffer);
- kfree(fb->planes);
kfree(fb);
}
-static int tegra_fb_create_handle(struct drm_framebuffer *framebuffer,
- struct drm_file *file, unsigned int *handle)
-{
- struct tegra_fb *fb = to_tegra_fb(framebuffer);
-
- return drm_gem_handle_create(file, &fb->planes[0]->gem, handle);
-}
-
static const struct drm_framebuffer_funcs tegra_fb_funcs = {
.destroy = tegra_fb_destroy,
- .create_handle = tegra_fb_create_handle,
+ .create_handle = drm_gem_fb_create_handle,
};
static struct tegra_fb *tegra_fb_alloc(struct drm_device *drm,
@@ -149,22 +135,15 @@ static struct tegra_fb *tegra_fb_alloc(s
if (!fb)
return ERR_PTR(-ENOMEM);
- fb->planes = kzalloc(num_planes * sizeof(*planes), GFP_KERNEL);
- if (!fb->planes) {
- kfree(fb);
- return ERR_PTR(-ENOMEM);
- }
-
drm_helper_mode_fill_fb_struct(drm, &fb->base, mode_cmd);
for (i = 0; i < fb->base.format->num_planes; i++)
- fb->planes[i] = planes[i];
+ fb->base.obj[i] = &planes[i]->gem;
err = drm_framebuffer_init(drm, &fb->base, &tegra_fb_funcs);
if (err < 0) {
dev_err(drm->dev, "failed to initialize framebuffer: %d\n",
err);
- kfree(fb->planes);
kfree(fb);
return ERR_PTR(err);
}